<!DOCTYPE html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

<div id="App">
    <h1>hello, {{name}}</h1>
</div>
<!--数据代理，通过一个对象代理另一个对象中属性的操作(读或写)-->
<script type="text/javascript">
    let obj = {x:100}
    let obj2 = {y:100}

    Object.defineProperty(obj2, "x", {
        get() {
            return obj.x
        },
        set(value) {
            obj.x = value
        }
    })


    console.log()

</script>
</body>
</html>